These are the most common gang tactics used against a target, as I have been one for over 10 years and still currently being gang stalked by organised criminal gang stalking group. So here’s what to look for:

Mobbing [Group bullying] also knows as [community mobbing]
Noise harassment campaign
Number harassment
Sensitisation
Street theater
Synchronised harassment activities
Sleep deprivation
Intimate inflirtation
Isolation
Profiling
Random encounters
Ruined relationships
Cyber stalking
Direct conversations
Baiting/Entrapment
Files
Fake credibility reports
Brighting
Anchoring
Car accidents
Colour harassment
Convoy
Gas lightening [one of the worst tactics] used by gang stalkers
Ghosting
Hand gestures [hands out the window of cars, arms, etc]
Illegal surveillance
Mimicry
Electronic harassment
Intimidation
Predatory stalking